Mountain Frames

Supercaliber SLR Frameset is an ultralight cross-country MTB frame that's itching to become your next dream bike. Its SLR Mountain Carbon layup is as light as it is meticulous, with a high modulus carbon fiber that gives you all the stiffness you crave and none of the weight. XC courses get rowdier every year, so it comes equipped 80mm of IsoStrut rear suspension to smooth your roll without kicking pedaling efficiency to the wind. It's right for you if... You want to build up the perfect cross-country bike with your own curated collection of components. You love the flexibility of being able to pick and choose every element of your bike and are ready for an ultralight and ultra-capable ride that's proven on the podium. The tech you get A featherweight, high-modulus SLR OCLV Mountain Carbon frame with modern XC geometry. 80mm of IsoStrut rear suspension from a RockShox SIDLuxe shock with 2-position remote damper. Designed to pair with a 110mm fork. The final word Supercaliber SLR frameset is ultralight, ultra-capable, and ready to be built into your dream ride. Why you'll love it - You get 80mm of IsoStrut rear suspension that partners with slacker, capable geometry for handling the roots and rocks of modern XC courses - You don't have to compromise stiffness for weight savings thanks to the SLR OCLV Mountain Carbon frame that's intensely light, stiff, and responsive - IsoStrut gives you tunable, damped suspension without missing out on efficiency for hammering up climbs at top speed - Pivotless seat stays save on weight and actively bend to help soak up trail chatter - You get to build it up with your dream collection of components Features: Nothing else like it Supercaliber’s unique frame design ditches traditional suspension hardware so there’s less weight, less maintenance, and less lateral flex. IsoStrut connects the mainframe to the pivot-less seat stays to offer about 80mm of rear wheel travel. This design offers a unique blend of efficiency, traction, and fatigue-fighting compliance that keeps racers fresh and in control. IsoStrut IsoStrut integrated suspension gives you just enough travel to stay in control. It's fully tuneable like a standard rear shock, but without the weight penalty of a full suspension bike.

Ticket DJ is a lightweight, durable dirt jump mountain bike frame with a compact rear end and roomy top tube for major style, the best handling, and the biggest tricks. Horizontal sliding dropouts let you choose between a singlespeed or geared setup for a personalized ride. It's right for you if... You spend at least half your time in the air at the dirt jumps, skate park, or pump track. You want options for a singlespeed or geared setup on a durable, lightweight frame. The tech you get Ticket DJ Frameset gives you the basics and lets you run with them. The lightweight and durable Alpha Platinum Aluminum frame has horizontal sliding dropouts that enables a singlespeed or a geared setup, and its short chainstays allow you to pop off jumps. The final word Get it if you want a super-durable bike for dirt jumps, the skate park, or the pump track. It's at home in the air, and built in collaboration with the best slopestyle riders in the world: the Trek C3 Project. Why you'll love it - Trek C3 Project riders have helped to dial-in the geometry and features of this bike over years of collaboration, and the result is a highly refined ride that has helped to define the sport - Alpha Platinum Aluminum is light without compromising durability

Ticket S is a slopestyle mountain bike frame built for big tricks, big jumps, and a whole lot of style. Lightweight Alpha Platinum Aluminum and 100mm of rear travel with a FOX shock make it both durable and agile. It's the frame of choice for Trek C3 Project riders, and for good reason: they've built it over years of refinement and collaboration with our designers. It's right for you if... You want to hit jumps like the Trek C3 Project riders. You've got an appetite for the tricky stuff and want a flickable ride that's forgiving enough for hard landings. The tech you get Durable yet lightweight Alpha Platinum Aluminum with Mino Link adjustable geometry, 100mm of rear travel with a FOX Performance Flat SV shock to soak up big landings, and features inspired by Trek C3 Project riders like water bottle bosses on the down tube for shifter mounts and a bottom bracket bolt to keep the crank from spinning while you're in the air. The final word Get it if you want a slopestyle whip you can throw around on big jumps. It's at home in the air, and built in collaboration with the best slopestyle riders in the world: the Trek C3 Project. Why you'll love it - This bike has won every major slopestyle comp, several times over - Mino Link lets you make small adjustments to your geometry quickly and easily, even mid-ride - A tapered headtube, pressfit bottom bracket, and 142x12mm rear dropouts are ready for your dream build

Top Fuel AL is an aluminum full suspension frameset ideal for building up a seriously fast, seriously fun down-country mountain bike. It's made for multi-tasking, so you can spec it to shred singletrack, crush flowy trails, and more. It's right for you if... You want to build up one single full suspension bike that's super fun to ride on a wide variety of trails. You're looking for a frame that's designed for both efficiency and shred-ability. The tech you get A lightweight Alpha Platinum Aluminum frame internal storage, Mino Link adjustable geometry, a 120mm Fox Performance Float shock with 2-position DPS damper, Knock Block 2.0 headset, 35mm Bontrager Elite stem, and internal cable routing. Designed for a 120mm fork, but can handle up to 130mm of fork travel. Fits 2.4" tires. The final word If you want a high-value foundation for a full suspension bike that's fast and fun on both flow trails and technical descents, Top Fuel AL is the place to start. Why you'll love it - Alpha Platinum Aluminum is lightweight and trail-tough - Efficient and capable: you can build up this frameset to suit a wide range of trails and terrain - Mino Link lets you make small adjustments to your geometry quickly and easily, even mid-ride - A sleek internal storage compartment gives you a versatile spot to stow tools and gear - New, removable Knock Block has a bigger steering angle to keep cables and hoses safe without sacrificing turning radius

Top Fuel C is a carbon full suspension frameset made for a super fast and fun down-county build that flies down technical descents and speeds through climbs and flowy sections. It's right for you if... You want to build up a quiver-killing bike that crushes all sorts of terrain. You know you want to start with a high-performance carbon frameset, and plan to spec it out as a mid-travel trail ripper. The tech you get A lightweight and trail-tough full OCLV Mountain Carbon frame with Mino Link adjustable geometry, an internal storage compartment, a 120mm Fox Performance Float shock with 2-position DPS damper, Knock Block 2.0 headset, Bontrager Elite 35mm stem, and internal cable routing. Designed for a 120mm fork, but can handle up to 130mm of fork travel. Fits 2.4" tires. The final word Top Fuel C is light, nimble, and fun. This OCLV Mountain Carbon frameset is ideal for building up the fast, efficient, and all-around-awesome trail bike of your dreams. Why you'll love it - The full carbon frame gives you a light, responsive ride - If you're looking to build up a lightning-fast, super versatile trail bike, this is exactly where you should start - Mino Link lets you make small adjustments to your geometry quickly and easily, even mid-ride - A sleek internal storage compartment gives you a versatile spot to stow tools and gear - New, removable Knock Block has a bigger steering angle to keep cables and hoses safe without sacrificing turning radius Wheel size: - Size X-Small: 27.5-inch - Sizes Small – X-Large: 29-inch

Top Fuel C is a carbon full suspension frameset made for a super-fast and fun down-county build that flies down technical descents and speeds through climbs and flowy sections.  WHY YOU'LL LOVE IT - The full carbon frame gives you a light, responsive ride - If you're looking to build up a lightning-fast, super versatile trail bike, this is exactly where you should start - Mino Link lets you make small adjustments to your geometry quickly and easily, even mid-ride - A sleek internal storage compartment gives you a versatile spot to stow tools and gear - New, removable Knock Block has a bigger steering angle to keep cables and hoses safe without sacrificing turning radius IT'S RIGHT FOR YOU IF… You want to build up a quiver-killing bike that crushes all sorts of terrain. You know you want to start with a high-performance carbon frameset, and plan to spec it out as a mid-travel trail ripper. THE TECH YOU GET A lightweight and trail-tough full OCLV Mountain Carbon frame with Mino Link adjustable geometry, an internal storage compartment, a 120mm Fox Factory Float shock with 3-position DPS damper and buttery-smooth Kashima coating, Knock Block 2.0 headset, Bontrager Elite 35mm stem, and internal cable routing. Designed for a 120mm fork, but can handle up to 130mm of fork travel. Fits 2.4" tires. THE FINAL WORD Top Fuel C is light, nimble, and fun. This OCLV Mountain Carbon frameset is ideal for building up the fast, efficient, and all-around awesome trail bike of your dreams.

As a highly versatile touring bike, the Bridge Club hits the sweet spot that separates on- and off-road excursions. The simplistic design makes it fully adept to handle a full rack and pannier setup, frame bags, or any combination of the two. It doesn’t feel sluggish on paved shortcuts, but can also hold its own on dirt detours. If you’re feeling a little zesty on your next road tour, you won’t be ill-prepared for reroutes through the woods. The Bridge Club is designed to handle it all. - 100% Surly Chromoly frame, main triangle is double-butted; 1-1/8" threadless Chromoly fork - Rack, fender, and four sets of three-pack mounts - Disc brake-specific, single-position vertical rear dropout makes it less intimidating than other bikes in the category - Clearance for 700 x 47mm (with or without fenders) or 27.5 x 2.8" tires (27.5 x 2.6" with fenders)

The Karate Monkey frame features updated, progressive trail geometry, a new tubeset, and Surly’s Gnot-Boost rear dropout system to support multiple drivetrain and wheel size configurations. - 100% Surly 4130 chromoly steel frame and fork; double-butted main triangle and 44mm headtube - Tubeset uses the same trumpet tubes found on Instigator 2.0 frame - Adjustable rear dropouts with 145mm Gnot-Boost spacing works with 142 x 12, 148 x 12mm, and 135mm w/ 10/12 washer - Internal dropper seatpost routing - 30.9mm seat tube ID - Clearance for 29 x 2.55 or 27.5 x 3 tires

The Karate Monkey features updated, progressive trail geometry, our custom trumpet tubeset, and Surly's Gnot-Boost rear dropout system. Available in a variety of colors, with multiple drivetrain and wheel size configurations.

As the first "plus" bike to hit the market, Krampus changed the way many people approach trail riding. It's shown people the light of how high-volume, large-diameter tires can vastly improve the ride experience. It's also done a bang-up job dispelling the myth that big tires make you slow. Krampus is kind of like the opposite of a mullet: long in the front and short in the rear. With a long toptube and compact chainstays, it takes trail-shredding abilities to the next level. A mullet may be business in the front, party in the back but Krampus makes partying its business. - Modern trail standards: dropper post compatibility, 44mm headtube, Gnot-Boost rear spacing, thru-axles, suspension-corrected fork - Compatibility with most mountain bike standards makes it the perfect parts bin bike (no rim brakes allowed though) - Clearance for 29 x 3" tires

As the first "plus" bike to hit the market, Krampus changed the way many people approach trail riding. It's shown people the light of how high-volume, large-diameter tires can vastly improve the ride experience. It's also done a bang-up job dispelling the myth that big tires make you slow. Krampus is kind of like the opposite of a mullet: long in the front and short in the rear. With a long toptube and compact chainstays, it takes trail-shredding abilities to the next level. A mullet may be business in the front, party in the back but Krampus makes partying its business. - Modern trail standards: dropper post compatibility, 44mm headtube, Gnot-Boost rear spacing, thru-axles, suspension-corrected fork - Compatibility with most mountain bike standards makes it the perfect parts bin bike (no rim brakes allowed though) - Clearance for 29 x 3" tires

Lowside is the bike that gets you across town for a quick rip on singletrack, then over to the bar for a night out. Your BMX Bike All Grown Up Lowside is like the grownup version of the bike you rode when you were a kid and still had hopes and dreams and some semblance of ambition. It's just as happy riding singletrack as it is parked outside your favorite drinking establishment. Lowside is a single speed mountain bike. Singlespeeding has been a part of Surly's DNA since day one when we launched the 1x1 Rat Ride. After a lot of Homie Fall Fests and more feats of strength than we can recall, we decided to discontinue it a couple years back. Lowside picks up right where the 1x1 left off. "Some have dubbed the Lowside the ultimate pub cruiser." - Modern trail standards: dropper post compatibility, 44mm headtube, Gnot-Boost rear spacing, thru-axles - Compatibility with most mountain bike standards makes it the perfect parts bin bike (no rim brakes allowed though) - Spec'd in alternating years with 26 x 3" or 27.5 x 2.8" tires, the Lowside remains capable of running either option

The Ogre can get you to your job during the week, then way out of town on the weekend. It’s not sluggish on pavement or gravel and can also hold its own on singletrack. Ogre brings several sensible features to the 29er platform, including horizontal slotted dropouts with Gnot-Boost spacing, a tweaked non-suspension corrected geometry, and a beefy tire clearance. - 100% Surly Chromoly steel, double-butted main triangle - TIG-welded, Horizontal slotted with derailleur hanger, Gnot-Boost spacing allows the use of 135mm QR hub, 142 x 12mm thru-axle or 148 x 12mm Boost hubs. Features Rohloff torque arm slot and threaded eyelets for fenders, racks and Surly trailer mounts - Full-length Surly Trip Guide housing line guides for derailleurs and brakes; two sets of bottle cage mounts; upper seatstay threaded barrels, mid- and low-blade fully threaded through-blade fork eyelets; threaded holes for racks, fenders and trailer mounting nuts; Rohloff OEM2 axle plate mounting slot - Disc brakes only. Disc mounts are 51mm IS. Note: rear disc brake is limited to 160mm maximum rotor diameter and requires the use of Surly caliper adaptor (included with frames and bikes) - Frame is E.D. coated for increased life expectancy - Tire clearance for 29 x 2.5" or 27.5 x 3"

The All-Around Fat Bike Wednesday sits in the middle of our Trail category, but don't let that fool you into thinking that's its only use. With Wednesday, we borrowed elements from some of our Trail and Touring models to create a versatile fat tire trail bike that can truly handle anything you want to attempt. If you do an equal amount of off-road touring as you do hitting trails, Wednesday's ability to play both parts equally will suit you well. Or, if you're looking for a fat bike and don't need the fattest tires on the market, Wednesday's 26 x 4.6" tire clearance is just the ticket. "Any day of the week's a great day to ride a Wednesday." - Modern mountain standards: stealth dropper post routing, 44mm headtube, suspension correction, front and rear thru-axles - Full suite of useful braze-ons: front and rear racks, multiple sets of three-pack mounts, fenders - Full-forward, short chainstay position: 26 x 3.8" tires on 80mm rims; full-rearward, longer chainstay position: 26 x 4.6" tires on an 80mm rim Specs: - Rear Dropout Configuration: Horizontal slotted with optional vertical dumpout - Rear Hub Spacing: 12 x 177mm (Surly axle included); 10 x 170mm with Surly 10/12 Adapter Washers (not included) - Front Hub Spacing: 15 x 150mm (Surly axle included) - Rear Brake: Disc - 51mm I.S. (203mm max rotor) - Front Brake: Disc - 51mm I.S. (203mm max rotor) - Head Tube: Ø44mm - Steerer Tube: Ø28.6mm (1-1/8") - Crown Race: Ø30mm (1-1/8") - Stock Headset Upper (S.H.I.S.): ZS44/28.6 - Stock Headset Lower (S.H.I.S.): EC44/30 - Front Derailleur (Clamp): High direct mount top-pull (Ø34.9mm) - Max Chainring (CL): 1x (Fat bike 170): 34T; 2x (Fat bike 170): 26/38T; 2x (Surly OD): 22/36T - Tire Clearance Frame: 26 x 4.3" (rear axle position); 26 x 3.8" (front axle position); 29 x 3.0" - Tire Clearance Fork: 26 x 5.25"; 29 x 3.0" - Rigid Fork Spec: 468 x 47mm - Max Suspension Fork Length: 511 x 51mm (Fatbike 100mm) - Bottle Mounts Frame: 2 Standard (XS - M); 3 Standard (L - XL) - Bottle Mounts Fork: 2 Three-Pack - Rack Mounts Frame: Yes (upper and lower threaded) - Rack Mounts Fork: Yes (upper, lower, and mid-blade threaded) - Fender Mounts Frame: Yes - Other Features: Internal dropper post routing compatible